Metal section



June 3, 1930.

H. E. WHITE METAL SECTION Filed May 2, 1928 INVENTOR. J-[rrrberfi E- White BY M I 6 M J-[IS ATTORNEY 35 I I metal structure shown in Figure 1 on theline Patented June 3,' 1930 TED S A Tris: PATENT oFFrcr.

HERBERT n WHITE, or YOUNGSTOWN, onio, Assrenon 'ro TRUSCON- STEEL GOMPANY,

' or YOUNGSTOWN, 01110, A ooRronA'rroN OF'MICHIGAN I METAL snc'rron Applicationmedma 2,

The present invention relates tomer'nbers for metal structures,- such as beams, girders, columns, cantilevers; and more particularly to a novel and eflicient design of supporting .5 structures, such aspoles, towers, A frames and H frames, among other wires and cables.

- The primar object of my inveniiion is to provide a 'de ormation in a meta ;section which shall improve its radius of gyration and stiffen and reinforce said member or section against torsion or bending without materially increasing the weight of said member or section, and which 5 uses, for overhead the area of unstressed metal orlmetalnotusable to thebest advantagein the construction of saidstructures.

Other objects will, be apparent upon reference to the following ings in which:

- Figure .1 is a perspect ve v1ew ofa. metal structure assembled, embodying the features of the present invention. I J

Figure 2 is across sect onal v1ew of the of section 2--2' of such figure. 1

Figure 3 is a .cross sectional view of a portion ofthe metal structure in Figure 1 .on the linevofsection 3-3 of Figure ,2. V

Figure 4 is a tion in the deformation tur'es.

Fi ure 5 is a cross sectional view of the meta structure shown in Figure 4 on theline of section 5-5 of such figure:

Figure 6 is a cross sectional v1ew of a porof the metal struction of the structure in Figure 4, 'on the line of section 6-6 of Figure 5.-

5 In the drawings, in which similarreferall provide 15 at the same time contact surfaces and consection which shall reduce description and drawperspective view of a varia 1928, Serial No. 274,605.

deformed channel se tlons and B represents continuous lattice'w members. i

A single sheet of metal is used, from which is formed/channel A, as may be seen in Figures 1 and 2. The web 1 is formed throughout its length 'in a continuous or intermittent trough-shaped depression 2, which is disposed symmetrically, preferably, in said web 1, and depressed in the direction of the flanges 3, or raised 'in the opposite or Web side direction 1. To attain the objects hereinbefore reclted, the deformation 2 is formed approximatelythree times, preferably, as, deep as the thickness of the plate from which the said channel A is formed. The deformedchannelA serve as legs or chords of metal members which are spaced opposite to eachother at varying distances. A movable electrode e gages a curved portion 4 ofthe said'lattice eb member B, as may be'seen in the above Fi 'res'l and 3, at its point of intersection wit the chord member A, while another op-" posing electrode engages the trough-shaped deformation 2 on its outer or web side 1.

The deformed channel A and the lattice web member B are then electrically, autogenously.

welded together at the inner or flange side 5 of the trough-shaped deformation 2. I

In the modification shown in Figures 4, 5

and 6, multiple trough-shapeddepressions v are disposed, preferably, symmetrically, and continuously or intermittently in the web 1 throughout its length and ,multiple lattice web members B are'oonnected theretoin the planner above described for single web memers.

In accordance with the'provisions of the I patent statutes, I have described the principle and construction of my invention together with the distinct views which I now consider the best embodiment thereof; but

I desireto have it understood that it is not to be limited to the forms and precise details given but is to be limited by the scope only of .thefollowing claims.

i provide a reinforcing flange, and a lattice or web member of zigzag form-welded at spaced points to the inner face of the flange,

said flange being unbroken by the welds and constituting astifiening reinforcement for the member both behind and between the said welds.- t- 2. A structural unit comprising a sheet metal member longitudinally channeled to a depth materially greater than the thickness of the plate and forming areinforcing flange,

[and a lattice or web member of zigzag form welded at spaced points to the inner face of the flange, said flange being unbroken by the welds andconstituting a stiffening reinforcement for the member both behind and between the said welds;

3. A structural unit comprising a sheet metal member longitudinally channeled to a depth materially greater than the thickness of-t'he plate and forming a longitudinal reinforcing flange, and a lattice or web member of a width not greater than the widthof said flange and of zigzag formation with its spaced points contacting only with and welded-only. to the inner face of the flange,

, said flange being unbroken by the welds and constituting a stiffening reinforcement for the member both behind and between the said welds; F

4. A structural unit comprising a pair of spaced apart sheet'metalmembers, both of which are provided with longitudinally dissubstantially flat'inner faces, and. a web rod of "zigzag form having its points against and reinforcing flanges having substantially flat inner faces, and a web rod-of zigzag form posed inset channels, forming inset opposite- 1y disposed inset reinforcing flanges having welded to said inner faces only, the said flanges being unbroken by the welds and' constituting stiffening reinforcements for said members, both behind and between'the said welds.

5. A structural unit, comprising a pair of" spaced apart sheet metal members having inset margins forming side flanges and intermediate longitudinal cha between the side flanges, said intermediate having its points against and welded to said inner faces only, broken by the welds and constituting stiflening reinforcements for said members both behind and .between the said welds. In testimony whereof, I aflix my signature.

. I lERBERT WHITE.

nneled portions forming oppositely inset reinforcing flanges the said flanges being nn- 1 

